fix docker and nginx file

Dockerfile

@@ -1,12 +1,18 @@
-FROM nginx:alpine
-# Move to Nginx's public folder
-WORKDIR /usr/share/nginx/html
-# 1. CRUCIAL: Remove Nginx's default "Welcome" page files completely
-RUN rm -rf ./*
-# 2. Copy your compiled static assets into the root folder.
-# NOTE: If your folder is named "dist" instead of "build", change "build/" to "dist/"
-COPY build/ .
-# 3. Copy your custom Nginx configuration (which you already have in your log)
-COPY nginx.conf /etc/nginx/nginx.conf
-EXPOSE 80
-CMD ["nginx", "-g", "daemon off;"]
+FROM node:20-alpine
+
+WORKDIR /app
+
+# Copy the standalone build output
+COPY build/ ./
+
+# Next.js standalone collects all needed node_modules during build,
+# so no `npm install` is necessary here.
+
+# Expose the port that server.js listens on
+EXPOSE 3000
+
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
+ENV NODE_ENV=production
+
+CMD ["node", "server.js"]